CVE-2021-32978 HIGH

CVE-2021-32978: Automation Direct CLICK PLC CPU Modules Plaintext Storage of a Password

Vendor Automation Direct
Product CLICK PLC CPU Modules: C0-1x CPUs
Weakness CWE-256
Published April 4, 2022
Last update April 16, 2025
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

What the vulnerability does

01Description

The programming protocol allows for a previously entered password and lock state to be read by an attacker. If the previously entered password was successful, the attacker can then use the password to unlock Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00.

Key dates

02Disclosure timeline

April 4, 2022 CVE published
April 16, 2025 Record updated